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12. OPTIONS AND AUXILIARY EQUIPMENT
(3) Connection of the regenerative brake option
POINT
When using the MR-RB54, cooling by a fan is required. Please obtain a
cooling fan at your discretion.
Set DRU parameter No.2 according to the option to be used. The regenerative brake option will cause
a temperature rise of 100 degrees relative to the ambient temperature. Fully examine heat
dissipation, installation position, used cables, etc. before installing the option. For wiring, use flame-
resistant cables and keep them clear of the regenerative brake option body. Always use twisted cables
of max. 5m(16.4ft) length for connection with the base unit.
The G3 and G4 terminals act as a thermal sensor. G3-G4 are disconnected when the regenerative
brake option overheats abnormally.
DRU parameter No.2
Selection of regenerativ
e
00: Not used.
06: MR-RB34
07: MR-RB54
10: MR-RB032
12: MR-RB14
3
P
C
G3
G4
2P
C
Base unit
Regenerative brake option
Note. Make up a sequence which will switch off the magnetic contactor
(MC) when abnormal heating occurs.
G3-G4 contact specifications
Maximum voltage: 120V AC/DC
Maximum current: 0.5A/4.8VDC
Maximum capacity: 2.4VA
5m (16.4 ft) max.
(Note)
CNP1A